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Arun Sangwan , Gaurav Kumar , Sorabh Gupta (2016). To Convalesce Task Scheduling in a Decentralized Cloud Computing Environment. Review of Computer Engineering Research, 3(1): 25-34. DOI: 10.18488/journal.76/2016.3.1/188.8.131.52
With the contempo slump and the immutable crush to deliver more services at a lower cost. Delivery model offers lower cost, and can make quick construction services. IT economics are changing rapidly, and large companies, in particular, looking for new ways to secure capital at a lower cost to maintain the viability of the company. Task scheduling problems are first class related to the overall efficiency of cloud computing facilities. Most developed algorithms for automation planning approach in one parameter of quality of service (QoS). However, if we consider more than one QoS parameter then the problem becomes more challenging. To address the problem, we need to introduce a scheduling strategy for multi-workflows with multiple QoS constrained for cloud computing. We need to introduce an optimized algorithm for task scheduling in cloud computing and its implementation. Furthermore, Load Balancing is a method to distribute workload across one or more servers, network interfaces, hard drives, or other computing resources. Use these components with the load balancing, on the one chamber, grow well in redundancy.
This study contributes in the existing literature of how to improve task scheduling. In this paper we allocate appropriate services for processing the workflow tasks and schedule the tasks on the services according to the requirements and the cloud environment. Efficient task scheduling method can meet users' demands, and Improve the utilization always come across a good deal of the world environment.
Web Service Composition for E-Commerce Web Application
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Anis ISMAIL , Abd El Salam AL HAJJAR , Abdel Karim KASSEM (2016). Web Service Composition for E-Commerce Web Application. Review of Computer Engineering Research, 3(1): 13-24. DOI: 10.18488/journal.76/2016.3.1/184.108.40.206
Web Services are based on distributed technology and provide standard means of interoperating between different software applications across and within organizational boundaries with the use of XML. Web Services technologies allow interaction between applications. Sometimes a single service given alone does not meet user’s needs. In this case, it is necessary to compose several services in order to achieve the user’s goal. Web service composition is one of the most challenging problems of recent years. The number of service providers is increasing, and along with that for a request they offer multiple services with the same functionality, so it makes the problem of composition quite complex. In this paper, we compose multi web services for E-Commerce. We implement a new web application that use two or many web services to make some transactions and to choose the best deal.
The paper's primary contribution is finding that the composition of web services is the process of combining Web services in order to offer value-added services. Web Services composition consists in combining several Web Services into a Composite one, in order to satisfy complex users queries.
Generalized Quantum Key Distribution for WDM Router Applications
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N. Djeffal , M. Benslama , I. Messaoudene (2016). Generalized Quantum Key Distribution for WDM Router Applications. Review of Computer Engineering Research, 3(1): 7-12. DOI: 10.18488/journal.76/2016.3.1/220.127.116.11
In this paper, we study the ability of quantum networks to support both random and non-random data traffic single-photon quantum communications signals on a shared infrastructure. The effect of wave length on distance coverage with the quantum bit error rate (QBER) of a quantum key distribution (QKD) system is increasing. The results of random phase showed minimal distance coverage over non-random phase. For fluctuating amplitude of random show a change in system performance improved sending capabilities. Hence, it is found that rare fluctuations should not degrade system performance significantly, but the data sending mode has a significant effect on channel integrity.
This study presents an original structure of generalized quantum key distribution suitable for wavelength division multiplexing (WDM) application.
High Isolation Microstrip Mimo Antennas for Wlan Systems
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I. Messaoudene, T. A. Denidni, and A. Benghalia, "Two-port MIMO cylindrical dielectric resonator antenna for LTE systems," presented at the 2014 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, July 6-11, 2014, Memphis, Tennessee, USA, 2014.
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R. Akhbar, Z. Faiza, A. M. Mozi, F. M. Atan, and N. H. Anuar, "Aperture coupled microstrip antenna with different substrate thickness," presented at the IEEE 4th Control and System Graduate Research Colloquium, 19 - 20 Aug. 2013, Shah Alam, Malaysia, 2013.
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L. Chouti , I. Messaoudene , N. Sahnoun , A. Behloul , A. Benghalia (2016). High Isolation Microstrip Mimo Antennas for Wlan Systems. Review of Computer Engineering Research, 3(1): 1-6. DOI: 10.18488/journal.76/2016.3.1/18.104.22.168
This paper introduces a novel design of aperture coupled microstrip antenna for MIMO array applications. The proposed antenna uses 2x4 patches excited from two ports via rectangular slots. HFSS (High Frequency Structure Simulator) and CST (Computer Simulation Technology)softwares are used to simulate the antennas performance. The results are given in term of S-parameters, radiation patterns and gain. In addition a parametric study is done to evaluate the effect of certain antenna parameters on the antenna performances. Form the simulated result, it is concluded that the proposed concept provides a good isolation between the two antenna ports (with low mutual coupling, S12/21 < -28 dB) and high gain. In addition, the obtained results are in good agreement.
This study presents a new multi-input multi-output antenna array with a reduced coupling between the two antenna ports.